Auxiliary magazine for automatic rifles



Nov. 5, 1929. 'w. R. FRAMPTON El AL 4,

AUXILIARY MAGAZINE FOR AUTOMATIC RIFLES Filed Nov. 21, 1928 2 Sheets-Shet 1 A/z'lzzf R [Pam via n A'TTORNEY R fggmoas Nov. 5, 1929,.

W. R. FRAMPTON ET AL AUXILIARY MAGAZINE FOR AUTOMATIC RIFLES Filed Nov. 21, 1928 Z'Sheets-Sheet 2 Ml burfifiampfanw MY/Iam 1?. Reed 5 Patented Nov. 5, 1929 UNITED STATES PATENT OFFICE WILBUB B. FRAMPTON AND WILLIAM RENO REED, OF INDEPENDENCE, KANSAS AUXILIARY MAGAZINE FOR AUTOMATIC RIFLES Application filed November 21, 1928. Serial No. 820,998.

This invention relates to firearms, and its general object -is to provide an auxiliary magazine for rifles andthe like that carries a multiplicity of cartridges which can be fed to the main magazine of the rifle in numbers,

in an easy and expeditious manner and increases the cartridge capacity of the usual automatic rifle from fifteen cartridges to sixty-five, but does not in any way increase 1 the size of the rifle, the auxiliary magazine being housed in the stock and adds very little weight to the rifle.

A further object of the invention is to provide an auxiliary magazine for rifles and the like, that is simplein construction, inexpensiveto manufacture and install, and is efficient in operation and service. 7

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing our invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:

Fi ure 1 is a sectional view taken approxi mate y on line 11 of Figure 2, looking in the direction of the arrows.

Fi re 2 is a sectional view taken approximate y on line 22 of Figure 1, looking in the direction of the arrows.

Figure 3 is a sectional view taken approximately on line 3-3 of Figure 1, looking in.

Figure 9 is a perspective view illustrating the controlling disk that is secured to the rod for operating the same.

Referring to the drawings in detail, the letter A indicates a rifle stock of an automatic rifle of a well known construction, and B the magazine sleeve which generally accommodates fifteen cartridges, and in the present instance, the magazine sleeve B as well as its housing sleeve G is provided with registering openings for a purpose which will be presently apparent.

The stock is formed with a chamber 1 that is cylindrical in form and receives-the magazine which forms the subject matter of the present invention. A passageway 2 provides communication between the chamber 1 and the magazine sleeve through the medium of the openings formed in said sleeves as best shown in Figure 1 and it is through this passageway that the cartridges are fed from the auxiliary magazine to the magazine sleeve.

The magazine which forms the subject matter of the present invention ma be termed an auxiliary magazine and inc udes a cylindrical member 3 having formed longitudinally therein a plurality of rounded grooves 4 providing cartridge housing chambers. These grooves 4 extend from one end to the other of said cylindrical member and centrally formed in said cylindrical member is a bore which rotatably receives a rod 5 having a knurled 0r serrated nut 6 secured to its outer end while its inner end has fixed thereto a disk 7 of the same diameter as the cylindrical member. The disk 7 is formed with a recess of the same cross sectional shape as the grooves i and the disk bears against the inner end of the cylindrical member for a purpose which will be presently apparent.

Secured in the stock and extendlng centrally into the inner end of the chamber 1 is a headless screw 8 that has its projecting end recessed to form a shoulder which has secured thereto the collared portion 9 of a disk 10, through the medium of a screw bolt 11.

The disk 10 is likewise provided .with a recess 12 of the same shape as the recess 13 in the disk 7, and the recess 12 is at all times in registration with the passageway 2. The inner end of the rod 5 engages the headless W the ends of the coil spring 16 extends upwardly from its convolutions and is disposed in V contacting engagement with the stud 14' as clearly shown in Figure 1 of the drawings.

The stud by bein disposed in the slot 14 limits the rotation o the disk 7 through the medium of the rod 5. The spring 16 holds the disk 7 in its normal position and with the recess thereof out of registration with the recess of the disk 10 as shown in Figure 7, but when the rod is rotated it will move the disk 7 against the tension of the spring for disposing the re cess of the disk 7 into registration with the re- 'cess of the disk These recesses are held into re 'stration until the cartridges are passed the recesses, and when the rod is' released, the

disk 7 will assume its normal position due to 80 the pressure of the extending end of the coil spring against the stud 15. The rod is of course rotated through the medium of the nut Surrounding the outer end of the cylindricalmember MS a collar 17 having notches disposed therein at equi-distantly spaced intervals, and secured in' a recess 18 formed in the stock is a bracket'1 9 having a leaf spring 20'carried thereby and which is directly se-' cured to a stud extending inwardly from the bracket. The leaf spring 20 is. arranged whereby its free end engages the'periphery of the collar 17 so that the, free end will be disposed in the notches of thecollar as clearly .shown in Figure 3, and when disposed the registration with the recess of the disk 10, with the result when the recesses arein registration with. a groove arranged accordingly,

the cartridges from the registering groove will freely pass intothe magazine sleeve as clearly shown in Figure 1.

Extending from the outer end of the cylindrical member is a pair of studs 21 that are a adapted to be received in openings formed in a cap 22 that is provided with lugs 23 extending outwardly therefrom to form finger pieces whereby the cylindrical member can rotated when the studs 21 .are arranged in the openings of the cap. The cap is held in operative position over the outer ends of the grooves 4 through the medium of a latch 24 that has one end pivotally secured to the cap and its 0 posite end is bent at right angles to the ody portion thereof to proom the groove that is aligned with groove adjacent to the spring is arranged in as shown in Figure 4 has its inner edge arranged to the rear of the nut 6. When in this position, the cap is held to cover the outer ends of the moved for grooves.

From the above description and disclosure of the drawin s, it will be obvious that we have provide an auxiliary magazine for rifles that (generally have a capacity of fifteen cartri ges, and the magazine increases this number to sixty-five. However it will be understood that the magazine can be made of any length it depending upon the length of the stoc with the result the auxiliary ma azine can hold any number of cartridges.

en the cartrid es are exhausted from the main m'agazineo the rifle, the cartridges from the auxiliary magazine are then used and when it is desired to put the cartridges 0 the auxiliary magazine into use, the cylindrical member is rotated until one of the grooves=4 is disposed in registration with the recess 12 of the disk 10. This movement is accomplished through the instrumentality of the lugs 23. The nut 6 is then moved for disposing the recess 13 of the disk 7 into registration with the groove that is aligned with the recess 12, the rifle is then turned to the position as shown in'Figure 1, and the cartridges will drop by gravity into the magazine sleeve B as clearly s own in Figure lof the drawings.

It is thought from the foregoing description that the advant es and novel features of our invention will mail: apparent.

We desire it to be underst that we may make changes in'the construction and in the combination and arrangement of, the several parts, provided that such changes fall withm the scope of the appended claims.

.What we claim is:

ooves, but can be readily resposing cartridges within the 1. Anauxiliary magazine for-a rifle comprising a c lindrical member formed with 'longitudina ly disposed grooves providing, cartridge receiving chambers, said cylindrical member being mounted for rotation in a chamber formed in the. stock of the rifle,

means ofccmmunication between the chamber and the ma zine sleeve of the rifle, means for rotating said cylindrical member for disposing. the-grooves in registration'with the means'of communication, means for controlling the communication andremovable means for the outer end of the cylindrical member.

2. An auxiliary magazine for a rifle com prising a cylindrical'member grooved longitudinally to provide a plurality of. cartrid e receiving chambers, means for rotating t e cylindrical member for disposing the grooves t ereof in communication with the magazine sleeve of the rifle, means for controlling the communication, means for operating the controlling means and a cap for the outer end i of said cylindical member and being detachably secured thereto.

3. An auxiliary magazine for a rifle comprising a cylindrical member grooved longitudinally to provide cartridge receiving chambers, a rod passing centrally through said cylindrical member for rotation thereln, a disk secured to one end of said rod and being provided with a recess adapted to register with the grooves of the cylindrical member, a nut providing a knob carried by the opposite end of said rod for rotating the latter for moving the disk, a stationary disk having a recess adapted to be disposed in communication with the magazine sleeve of the rifle, a cap detachably secured to the outer end of said cylindrical member for rotating the latter for disposing a groove in COIILIDll-- nication with the recesses for the purpose specified.

4. An auxiliary magazine for a rifle comprising a cylindrical member grooved longitudinally to provide cartridge receiving chambers, means for rotating said cylindrical member and providing a cap for the outer end thereof, a stationary disk provided with a recess adapted to be disposed in communication with the magazine sleeve of the rifle, a rotatable disk disposed in engagement with the inner end of said cylindrical member and being provided with a recess adapted to be disposed in registration with the recess of the stationary disk, means for rotating the sec- 0nd mentioned disk, lugs on the cap for rotating the cylindrical member for disposing the grooves thereof in registration with the registering recesses, a collar surrounding said cylindrical member adj acent its outer end and being provided with transversely disposed notches, and means en gageable in said notches-for holding any one of the grooves of the cylindrical member in registering position with the recesses. 5. An auxiliary magazine for a rifle comprising a cylindrical member grooved longiv tudinally to provide a plurality of cartridge receiving chambers, means for rotating said cylindrical member for disposin any one of t e grooves thereof in registration with the magazine sleeve of the rifle, means for controlling communication between the grooves and the magazine sleeve, a collar secured to the outer end of said cylindrical member, a I bracket arranged adjacent the collar and a. sprin having connection with said bracket and isposed in the path of notches formed in the collar for holdin the cylindrical member in a position where y any one of the cartridge chambers thereof is disposed in operative position.

In testimony whereof we aflix our signatures.

WILBUR R'. FRAMP'IUN. R. REED. 

